Final answer:
Hypatia was an astronomer and philosopher who taught at Alexandria and Ptolemy was an astronomer and geographer who believed that Earth was the center of the universe.
Step-by-step explanation:
Hypatia was an astronomer and philosopher, teaching at Alexandria and having the Museum of Alexandria built. She was the first female mathematician. Ptolemy, on the other hand, was also an astronomer and geographer who believed that Earth was the center of the universe.
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